Here is an interesting online course developed by Nation Builder following the Le(a)d plan system designed for those interested in learning how to run for office. This is a practical course for volunteers, organizers, campaign managers, and candidates as well.
Nation Builder: How To Tun For Office Guide Course
I agree. Nation Builder is an entry-level, online platform specifically built for American campaigns for candidates who are starting to run. It is still a bit technical, especially for design.
It is very technical.